Preheat the oven to 350°F. Add ground turkey to a large bowl.
Then in the same bowl add the eggs, onion, and all the seasonings (except the ketchup). Mix ingredients together very well with your hands until all ingredients are incorporated.
Now you can easily form the mixture into a loaf and transfer it to a sheet pan or 9x13 baking dish.
Put the dish in the oven and let it cook for 30 minutes. After the 30 minutes are up take the pan/dish out of the oven and add the ketchup on top. Put the meatloaf back in the oven to finish cooking for another 30-45 minutes, or until the internal temperature reaches 160°.
Once the meatloaf is done let it rest for 10 minutes before slicing. Enjoy!